/* vim: set ts=4 sw=4 tw=99 et:

 *

 * Copyright (C) 2012 David Anderson

 *

 * This file is part of SourcePawn.

 *

 * SourcePawn is free software: you can redistribute it and/or modify it under

 * the terms of the GNU General Public License as published by the Free

 * Software Foundation, either version 3 of the License, or (at your option)

 * any later version.

 * 

 * SourcePawn is distributed in the hope that it will be useful, but WITHOUT ANY

 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License along with

 * SourcePawn. If not, see http://www.gnu.org/licenses/.

 */

#ifndef _include_sp2_native_table_h_

#define _include_sp2_native_table_h_

#include <string.h>

#include "AllocatorPolicies.h"

#include "Strings.h"

#include "HashTable.h"

#include "Vector.h"

#include "VirtualObjectVisitor.h"

namespace ke {

class NativeTable

{

  public:

    NativeTable(Zone *zone);

    ~NativeTable();

  private:

    struct NativeInfo {

        Unbarriered<String> name;

        void *address;

        size_t index;

        NativeInfo(String *name, void *address, size_t index)

          : address(address),

            index(index)

        {

            this->name = name;

        }

    };

    struct Policy

    {

        typedef NativeInfo * Payload;

        static uint32 hash(const CharsAndLength &key) {

            return HashCharSequence(key.str(), key.length());

        }

        static bool matches(const CharsAndLength &key, NativeInfo *info) {

            if (info->name->length() != key.length())

                return false;

            return memcmp(info->name->chars(), key.str(), key.length() * sizeof(char)) == 0;

        }

    };

    typedef HashTable<Policy, ZoneAllocatorPolicy> NativeMap;

  public:

    bool initialize();

    bool bind(const char *name, void *address);

    bool add(Handle<String> name, size_t *indexp);

    String *name(size_t index) const {

        return natives_[index]->name;

    }

    void *address(size_t index) const {

        return natives_[index]->address;

    }

    void accept(VirtualObjectVisitor *visitor);

  private:

    Zone *zone_;

    NativeMap nativeMap_;

    Vector<NativeInfo *> natives_;

};

}

#endif // _include_sp2_native_table_h_